SOLUTION: Ten grams of sugar are added to a 40 grams serving of a breakfast cereal that is 30% sugar. What is the percent concentration of sugar in the resulting mixture?

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Question 752328: Ten grams of sugar are added to a 40 grams serving of a breakfast cereal that is 30% sugar. What is the percent concentration of sugar in the resulting mixture?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+.3%2A40+=+12+ grams of sugar in the cereal
Let +x+ = the fraction of sugar in resulting mixture
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+%28+12+%2B+10+%29+%2F+%28+40+%2B+10+%29+=+x+
+x+=+22%2F50+
+x+=+.44+
+.44%2A100+=+44+
44 percent of the final mixture is sugar